Inventor

Changgeng HUANG

Inventor
CN

Overview

1→
Patents
2023
Patent span
Electricity
Primary field (CPC H)

Patents· 1 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B22Fprimary
B22FWorking metallic powder13%
C21DModifying the physical structure of ferrous metals13%
C22CAlloys13%
F27BFurnaces, kilns, ovens or retorts in general13%
F27DDetails or accessories of furnaces, kilns, ovens or retorts, in so far as they are of kinds occurring in more than one kind of furnace13%
H01FMagnets13%
H01LSemiconductor devices13%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1013%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2023Patents assigned to FUJIAN CHANGTING GOLDEN DRAGON RARE EARTH CO LTD (1)· patent assignee history
2023Based in CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FUJIAN CHANGTING GOLDEN DRAGON RARE EARTH CO LTD12023
Locations
LocationPatentsSpan
CN12023